BRAKE DRUM

How do I get the rear brake drum of a grand caravan it does not want to move.
The parking parke is of and the wheel spins easily.
Any ideas where I am going wrong we have hit it witha rubber hammer but tio no avail.

A rubber hammer is your first mistake. Use a four pound steel hammer. But, before you do that back the adjuster off all the way. On the backing plate there is a black rubber plug. Use a flat blade screwdriver to pop it out, then with the same screwdriver turn the adjuster wheel all the way down. Then hit the drum with the hammer until it shocks free from the wheel bearing flange.